* {
    padding: 0;
    margin: 0;
    box-sizing: border-box;
}
body {
    height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    font-family: sans-serif;
    background: linear-gradient(to Bottom,rgb(255,49,144) 0%,rgb(204, 49, 144) 100%);
}
.container {
    height: 50px;
    position: relative;
    box-shadow: 2px 5px 6px rgba(0, 0, 0, 0.3);
}
.input {
    width: 50px;
    height: 50px;
    outline: none;
    border: none;
    border-radius: 5px;
    padding: 15px;
    transition: width 0.3s linear;
    font-size: 14px;
}
.container.active .input {
    width: 300px;
}
.btn {
    width: 50px;
    height: 50px;
    position: absolute;
    outline: none;
    cursor: pointer;
    background-color: #fff;
    border: none;
    border-radius: 5px;
    right:0;
    transition:transform 0.3s linear;
}
.container.active .btn {
    /* transform: translateX(25px); */
}
